What Colour Analysis is? Is it actually useful?
Long story short, colour analysis is a a method of determining the colors that harmonise with a person’s skin complexion, eye color and hair color with the benefit of being able to use this tool for wardrobe planning and style consulting. Color analysis demonstrates how certain shades are capable of being flattering or, conversely, unflattering.
The wrong colors will draw attention to such flaws as wrinkles or uneven skin tone while harmonious colors will enhance the natural beauty of the individual making them appear healthy and fresh-faced.

When and how this method begun?

In the 20s, a color revolution had occurred in the United States with the development of new color industries and the possibility of producing color swatch books used as a marketing tool. Personal color analysis reached a height of popularity in the early 1980s with a recent resurgence in the 2010s after further development and promotion of different versions of seasonal analysis by image and color consultants worldwide using the “seasonal analysis” placing individuals in a specific season, which had a specific suitabile color palette.
However 4 seasons weren’t enough as exists a larger variety of skin complexion, so the scheme was extendend up to 12 color palette: Winter, Spring, Summer and Autumn, and
their sub-variants. However, the approach can vary greatly among different schools of thought. Some color analysis systems classify an individual’s personal combination of hair color, eye color and skin tone using labels that refer to a color’s “temperature” (cool blue vs. warm yellow) and the degree to which the hair, skin and eye colors contrast. Cosmetic colors are often determined by hair or eye color alone.
The analysis I do includes all these traits, but I don’t place you in a season because I don’t believe in standard categories as each one of us has peculiar and personal characteristics. This also means that the colour scheme I’ll give you is a specific one for your actual look, if you dye your hair, use coloured lenses or tan, you colour scheme changes so you’ll need to update it.

Colours Analysis, basically, place you in a precise spot on the chromatic wheel and basing on that it’s easy to understand which colours one should avoid, like complementary colours (be aware that these rules apply for clothes and accessorizes, as for the make up there are different rules and methods). For example, if you are in the violet(ish) spectrum, colours on the opposite side (yellow) should be avoided and you can see it in the first picture with my own colour analysis.

I hope this short explanation clarified your doubts helping you to understand why I always suggest you to make me prepare your color analysis alongside your body analysis because right clothes is pointless if you wear them in the wrong colours and a mistake like that could actually lead you to think that perhaps you look disgraceful because I gave you the wrong tips while it’s the colour’s fault and my advices were just incomplete.